CocoaPods/Specs — pull request #1318 by mattyohe (2013-02-21 23:41:48+00:00)
Title: [Fix] UrbanAirship-iOS-SDK mistakenly left off AudioToolbox and MessageUI frameworks

@dkuhnke To double check here: is there a reason AudioToolbox and MessageUI were not included your update to the 1.4.0 spec? If not then this should fix the undefined symbols I ran into.